<template>
	<view class="login-container">
		<!-- 提示登录的图标 -->
		<uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
		<!-- 登录按钮 -->
		<button @getuserinfo="getUserinfo" open-type="getUserInfo" class="btn-login">一键登录</button>
		<!-- 登录提示 -->
		<view class="tips-text">登录后尽享更多权益</view>
	</view>
</template>

<script>
	import {mapMutations} from 'vuex'
	export default {
		name: "my-login",
		data() {
			return {

			};
		},
		methods: {
			...mapMutations('m_user',['updateUserInfo']),
			getUserinfo(e) {
				console.log('获取用户的详情信息',e)
				if (e.detail.errMsg === 'getUserInfo:fail auth deny') return uni.$showMsg('您取消了登录授权！')
				// 将用户信息存储到vuex中
				this.updateUserInfo(e.detail.userInfo)
				
				// 获取登录成功后端信息
				this.getToken(e.detail)
			},
			async getToken(info) {
				const [err,res] = await uni.login().catch(err => err)
				console.log(err,res)
				if (err || res.errMsg !== 'login:ok') return uni.$showMsg('登录失败')
				
				// 换取token
				let query = {
					code: res.code,
					encryptedData: info.encryptedData,
					iv: info.iv,
					rawData: info.rawData,
					signature: info.signature
				}
				let loginRes = await uni.api.getWxlogin(query)
				console.log('获取接口返回的token',loginRes)
				if (loginRes.meta.status != 200) return uni.$showMsg('登录失败')
				uni.$showMsg('登录成功')
			}
		}
	}
</script>

<style lang="scss">
	.login-container {
		// 登录盒子的样式
		height: 750rpx;
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
		background-color: #f8f8f8;
		position: relative;
		overflow: hidden;

		// 绘制登录盒子底部的半椭圆造型
		&::after {
			content: ' ';
			display: block;
			position: absolute;
			width: 100%;
			height: 40px;
			left: 0;
			bottom: 0;
			background-color: white;
			border-radius: 100%;
			transform: translateY(50%);
		}

		// 登录按钮的样式
		.btn-login {
			width: 90%;
			color: #fff;
			border-radius: 100px;
			margin: 15px 0;
			background-color: #c00000;
		}

		// 按钮下方提示消息的样式
		.tips-text {
			font-size: 12px;
			color: gray;
		}
	}
</style>
